• 847-716-2157
  • Year Established: 2008
  • Homeowners Served: 4,000
  • Number of Employees: 10+
"You deserve to live in a safe, comfortable home. When you partner with On the Mark Heating & Air, we will ensure your home is safe and comfortable while providing fair pricing, high-quality workmanship, the latest technologies, licensed technicians, and friendly customer service. We look forward to working with you to find the best and most comfortable solutions for you and your family."

Mark Portuese, General Manager
Principal Owners / Key Managers
Mark Portuese, General Manager
Five Star Guarantee
We stand behind every Five Star Rated company with Our Guarantee. We've done the research for you and identified the best home service pros in your neighborhood.
Homeowner Reviews

“I highly doubt we will be calling anyone else for our future needs. As a corporate trainer by profession, I can say with full confidence these guys are top-notch with their customer experience. Big thanks to Mark and the guys for always being so awesome.”

“The gentleman was knowledgeable and very professional. I was made aware when he was en route. I was informed of services that were also possible without feeling pressured. I highly recommend On the Mark for all your HVAC needs and services.”

“Eric is the best! Came over, cleaned out the A/C, recharged and repaired it quickly.”

  • 847-716-2157
  • Year Established: 2008
  • Homeowners Served: 4,000
  • Number of Employees: 10+
"You deserve to live in a safe, comfortable home. When you partner with On the Mark Heating & Air, we will ensure your home is safe and comfortable while providing fair pricing, high-quality workmanship, the latest technologies, licensed technicians, and friendly customer service. We look forward to working with you to find the best and most comfortable solutions for you and your family."

Mark Portuese, General Manager
Principal Owners / Key Managers
Mark Portuese, General Manager
Top Company Features
  • Five Star Guarantee
  • General Liability Insurance
  • Workers' Compensation Insurance
  • Financing Available
Services Offered
Heat pump installation, repair, and maintenance
Air conditioner installation, repair, and maintenance
Gas furnace installation, repair, and maintenance
Indoor air quality services, products, and testing
Thermostat repair and installation
Ductwork repair and installation
Maintenance plans offered
Financing available
Free estimates on new equipment
We do not service boilers or refrigeration units.
Insurance
General Liability & Workers' Compensation
Warranties / Guarantees
Honest and upfront pricing
Customer satisfaction guarantee
Recognitions
300+ 5-star reviews
North American Technician Excellence (NATE) certified technicians